use mental math
math that is done in your head
GIMME THE ANSWER
1800
4 x 8 = 32. Add 2 zeros. 40 x 80 = 3200
You can, if you wish.
70
how to do mental math useing propertys
13.48 - 6.1 in mental math = 7.380000000000001
mental math is doing the math in your head or in your mind but not in a calculator or pencil and paper
Mental math is basically math in your head so for example 40x2=80 so I did that in my head
use mental math
50 what's "mental math" supposed to mean? if it just means you did it in your head, then there is no difference between mental and regular math, except that it is harder to check your work.
math that is done in your head
Mental Math Mostly
GIMME THE ANSWER
You would multiply 12x5, and then just add a zero. The answer is 600.